Where to put fuses in a dc circuit?

Say I have a 12 volt battery and I want to connect a light and a radio.  Should I put a fuse next to the positive or negative terminal of the battery?  Or should I fuses in front of everything.  DC current flows from pos to neg right?  so I would put the appropriate fuse on the positive side of each electronic device?    

Dr.Bill6 years ago
All my equipment is fused individually on the positive (red) wire.
If you want to fuse the Positive side wire off the battery too its OK.
orksecurity6 years ago
Fuse goes in series with the load, to protect the power supply if the load shorts out. Positive or negative side doesn't matter; fuse responds to excessive current, not voltage or polarity.
Re-design6 years ago
In a circuit like this it doesn't matter.